EP0072289A3 - Electro-acoustic transducer with intrinsically polarized dielectric capacitor - Google Patents
Electro-acoustic transducer with intrinsically polarized dielectric capacitor Download PDFInfo
- Publication number
- EP0072289A3 EP0072289A3 EP82401394A EP82401394A EP0072289A3 EP 0072289 A3 EP0072289 A3 EP 0072289A3 EP 82401394 A EP82401394 A EP 82401394A EP 82401394 A EP82401394 A EP 82401394A EP 0072289 A3 EP0072289 A3 EP 0072289A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- polarized dielectric
- electro
- acoustic transducer
- dielectric capacitor
- electrodes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000003990 capacitor Substances 0.000 title 1
- 239000007787 solid Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
L'invention se rapporte aux microphones à condensa teur à diélectrique solide polarisé. La structure vibrante soumise à la pression acoustique comporte des électrodes (7, 8) recueillant les charges électriques induites sur les faces du diélectrique polarisé. Ces électrodes sont reliées à un circuit électrique adaptateur d'impédance (51). The invention relates to condenser microphones solid polarized dielectric. The vibrating structure subjected to sound pressure has electrodes (7, 8) collecting the electric charges induced on the faces of the polarized dielectric. These electrodes are connected to an electrical impedance adapter circuit (51).
L'invention a pour objet un microphone dont la struc ture vibrante (1) est une plaque plane travaillant en flexion faible et attachée par son bord à un support (44, 45). The subject of the invention is a microphone whose structure vibrating structure (1) is a flat plate working in flexion weak and attached by its edge to a support (44, 45).
L'invention s'applique notamment aux microphones à pression et à gradient de pression pour les applications téléphoniques. The invention applies in particular to microphones with pressure and pressure gradient for applications telephone calls.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8115507A FR2511571A1 (en) | 1981-08-11 | 1981-08-11 | ELECTROACOUSTIC TRANSDUCER WITH CONDENSER WITH POLARIZED SOLID DIELECTRIC |
FR8115507 | 1981-08-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0072289A2 EP0072289A2 (en) | 1983-02-16 |
EP0072289A3 true EP0072289A3 (en) | 1983-04-06 |
Family
ID=9261362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82401394A Withdrawn EP0072289A3 (en) | 1981-08-11 | 1982-07-27 | Electro-acoustic transducer with intrinsically polarized dielectric capacitor |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0072289A3 (en) |
JP (1) | JPS5841000A (en) |
KR (1) | KR840001425A (en) |
FR (1) | FR2511571A1 (en) |
GB (1) | GB2111799A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2542552B1 (en) * | 1983-03-07 | 1986-04-11 | Thomson Csf | ELECTROACOUSTIC TRANSDUCER WITH PIEZOELECTRIC DIAPHRAGM |
DE3425175A1 (en) * | 1984-07-09 | 1986-03-27 | Fernsprech- und Signalbau KG Schüler & Vershoven, 4300 Essen | Piezoelectric acoustic transducer |
DE3425176A1 (en) * | 1984-07-09 | 1986-02-20 | Fernsprech Und Signalbau Kg Sc | Piezoelectric telephone capsule |
DE3825973A1 (en) * | 1988-07-29 | 1990-02-01 | Siemens Ag | ELECTROACOUSTIC UNIT TRANSFORMER |
DE10297066B4 (en) | 2002-04-11 | 2006-08-31 | Rion Co., Ltd. | Electroacoustic transducer |
DE102010021157A1 (en) * | 2010-05-21 | 2011-11-24 | Daniela Manger | 3D stereo microphone gap |
KR101781551B1 (en) * | 2011-07-20 | 2017-09-27 | 삼성전자주식회사 | Electric energy generating device and method of driving the same |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1131741B (en) * | 1961-02-03 | 1962-06-20 | Siemens Ag | Electrostrictive membrane for an electroacoustic transducer |
FR1334235A (en) * | 1961-09-29 | 1963-08-02 | Siemens Ag | Electro-acoustic transformer |
DE2714709A1 (en) * | 1976-04-02 | 1977-10-06 | Matsushita Electric Ind Co Ltd | ELECTROACOUSTIC CONVERTER WITH A HIGHLY POLYMERIC PIEZOELECTRIC MEMBRANE |
US4064375A (en) * | 1975-08-11 | 1977-12-20 | The Rank Organisation Limited | Vacuum stressed polymer film piezoelectric transducer |
US4170742A (en) * | 1974-07-15 | 1979-10-09 | Pioneer Electronic Corporation | Piezoelectric transducer with multiple electrode areas |
-
1981
- 1981-08-11 FR FR8115507A patent/FR2511571A1/en active Granted
-
1982
- 1982-07-27 EP EP82401394A patent/EP0072289A3/en not_active Withdrawn
- 1982-08-09 GB GB08222881A patent/GB2111799A/en not_active Withdrawn
- 1982-08-10 JP JP57139076A patent/JPS5841000A/en active Pending
- 1982-08-10 KR KR1019820003586A patent/KR840001425A/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1131741B (en) * | 1961-02-03 | 1962-06-20 | Siemens Ag | Electrostrictive membrane for an electroacoustic transducer |
FR1334235A (en) * | 1961-09-29 | 1963-08-02 | Siemens Ag | Electro-acoustic transformer |
US4170742A (en) * | 1974-07-15 | 1979-10-09 | Pioneer Electronic Corporation | Piezoelectric transducer with multiple electrode areas |
US4064375A (en) * | 1975-08-11 | 1977-12-20 | The Rank Organisation Limited | Vacuum stressed polymer film piezoelectric transducer |
DE2714709A1 (en) * | 1976-04-02 | 1977-10-06 | Matsushita Electric Ind Co Ltd | ELECTROACOUSTIC CONVERTER WITH A HIGHLY POLYMERIC PIEZOELECTRIC MEMBRANE |
Non-Patent Citations (2)
Title |
---|
ELECTRONICS LETTERS, vol. 11, no. 22, 30 octobre 1975, pages 532,533, Londres (GB); J.F. SEAR et al.: "Noise cancelling microphone using a piezoelectric plastics transducing element * |
JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 15, no. 11, 1976, pages 2239-2240, Tokyo (JP); L. BREGER et al.: "Banding piezoelectricity in polyvinilidene fluoride" * |
Also Published As
Publication number | Publication date |
---|---|
EP0072289A2 (en) | 1983-02-16 |
KR840001425A (en) | 1984-04-30 |
GB2111799A (en) | 1983-07-06 |
JPS5841000A (en) | 1983-03-10 |
FR2511571A1 (en) | 1983-02-18 |
FR2511571B1 (en) | 1983-12-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Designated state(s): DE IT NL SE |
|
AK | Designated contracting states |
Designated state(s): DE IT NL SE |
|
17P | Request for examination filed |
Effective date: 19830416 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19850614 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MICHERON, FRANCOIS Inventor name: RAVINET, PIERRE |